Strategic Action Game
Try to build a major metropolitan by building towers. The larger the tower, the more prerequisites you'll need to place them. For example, blue towers are the smallest and can go anywhere, red towers require a blue tower beside it, green towers need a blue and red neighbour and a yellow tower needs a blue, red and green neighbour.
The actual building of the towers requires decent timing, as the higher your build gets, the more difficult it is to build them as they start to sway like crazy.
You can also place newly created towers squares occupied by an existing tower. You may even want to place a smaller tower over a larger tower so you can place an even larger tower some place for your next turn.